Results 51 to 60 of about 105,811 (251)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Iridium-Catalyzed Silylation of Unactivated C-H Bonds. [PDF]

open access: yes, 2019
The functionalization of primary C-H bonds has been a longstanding challenge in catalysis. Our group has developed a series of silylations of primary C-H bonds that occur with site selectivity and diastereoselectivity resulting from an approach to run ...
Hartwig, John F, Romero, Erik A
core  

Exploiting double exchange Diels-Alder cycloadditions for immobilization of peptide nucleic acids on gold nanoparticles [PDF]

open access: yes, 2020
The generation of PNA-decorated gold nanoparticles (AuNPs) has revealed to be more difficult as compared to the generation of DNA-functionalized ones. The less polar nature of this artificial nucleic acid system and the associated tendency of the neutral
Cadoni, Enrico   +4 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Recent advances towards electrophotocatalytic C(sp2 )-H functionalization

open access: yesSynOpen
The direct functionalization of inert C(sp²)-H bonds represents a central and challenging objective in synthetic chemistry. Photoelectrocatalysis has recently ushered in a transformative paradigm for efficient C(sp²)-H bond functionalization.
Peng Qian, Jiusi Yang
doaj   +1 more source

RhI/RhIII catalyst-controlled divergent aryl/heteroaryl C-H bond functionalization of picolinamides with alkynes [PDF]

open access: yes, 2015
The ability to establish switchable site-selectivity through catalyst control in the direct functionalization of molecules that contain distinct C-H bonds remains a demanding challenge that would enable the construction of diverse scaffolds from the same
Alonso, Inés   +5 more
core   +2 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Recent advances in visible light-induced C1(sp3)-H functionalization of tetrahydroisoquinolines for C–C bond formation

open access: yesGreen Chemistry Letters and Reviews
Tetrahydroisoquinolines (THIQs) are a significant class of nitrogen-containing heterocyclic compounds often occurring in natural products and pharmaceuticals, exhibiting excellent biological activities and chemical properties, and also having a wide ...
Kai Yang   +5 more
doaj   +1 more source

Copper catalyzed late-stage C(sp3)-H functionalization of nitrogen heterocycles

open access: yesNature Communications, 2021
Late-stage C(sp3)-H bond functionalization of N-heterocycles with broad substrate scope remains a challenge and of particular significance to modern chemical synthesis and pharmaceutical chemistry. Here the authors show copper-catalysed late-stage C(sp3)-
Zhe Chang   +6 more
doaj   +1 more source

Genetically Tunable Enzymatic C‒H Amidation for Lactam Synthesis [PDF]

open access: yes, 2019
A major challenge in carbon‒hydrogen (C‒H) bond functionalization is to have the catalyst control precisely where a reaction takes place. Here we report engineered cytochrome P450 enzymes that perform unprecedented enantioselective C‒H amidation ...
Arnold, Frances H.   +2 more
core  

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